CN110552418A - novel anti-displacement safety inspection well cover - Google Patents
novel anti-displacement safety inspection well cover Download PDFInfo
- Publication number
- CN110552418A CN110552418A CN201910917568.2A CN201910917568A CN110552418A CN 110552418 A CN110552418 A CN 110552418A CN 201910917568 A CN201910917568 A CN 201910917568A CN 110552418 A CN110552418 A CN 110552418A
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- China
- Prior art keywords
- cover plate
- limiting rod
- groove
- cover
- inspection well
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- 238000007689 inspection Methods 0.000 title claims abstract description 36
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 238000007599 discharging Methods 0.000 claims description 8
- 229910001018 Cast iron Inorganic materials 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F5/06—Gully gratings
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F5/06—Gully gratings
- E03F2005/061—Gully gratings hinged to the body of the gully
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses a novel anti-displacement safety inspection well cover which comprises a ring seat and a cover plate arranged on the ring seat, wherein the cover plate comprises a first cover plate and a second cover plate hinged with the first cover plate, and the first cover plate is also hinged with the ring seat; at least one water drainage groove is formed in the second cover plate, a limiting rod sliding along the water drainage groove is arranged in the water drainage groove, a groove is formed in the inner wall of the ring seat, the other end of the limiting rod is clamped in the groove, the limiting rod is further connected with an executing mechanism enabling the limiting rod to slide, and the executing mechanism is arranged below the cover plate. The invention can prevent theft and displacement and is convenient to open; simultaneously, when meetting the torrential rain, can open the well lid and make the opening angle of well lid inject 0-30 in, on the one hand with too much ponding discharge to the road surface in the sewer fast, alleviate the pressure of the rivers in the sewer, prevent that pressure is too big, the top holds in the palm the well lid, on the other hand prevents that the too big incident that takes place the pedestrian and fall of well lid opening angle.
Description
Technical Field
The invention relates to the technical field of inspection well covers, in particular to a novel anti-displacement safety inspection well cover.
Background
The inspection well cover is an important facility in urban municipal administration, is mainly used for greenbelts, sidewalks, motor vehicle lanes, wharfs, alleys and other areas, and prevents people or objects from falling.
The current cast iron inspection shaft lid most directly relies on the dead weight to press at the well head, and is stolen easily, for the problem of solving the easy theftproof of inspection shaft lid, has appeared theftproof cast iron inspection shaft lid, and is common have two kinds of forms:
1. The anti-theft cast iron inspection well cover is formed by connecting a cover plate and a cover seat of a cast iron inspection well cover through hinges which are inconvenient to detach. Although the anti-theft cast iron inspection well cover has the advantages of anti-theft property and high strength, when accumulated water on a road drains unsmoothly, the cover plate of the inspection well cover is pushed open by water pressure in the inspection well, the inspection well cover is displaced and still becomes a 'life-lost inspection well', and serious potential safety hazards exist.
2. The manhole cover is provided with a lockset, and if the Chinese patent application number is 201010501429, the manhole cover anti-theft lock is disclosed; the utility model discloses a chinese utility model patent application number is 201822175407, discloses an thing networking intelligence theftproof well lid. Although the anti-theft problem is effectively solved by arranging the lock, the anti-theft safety well has the defects that on one hand, the cost of the lock is high, the value of some locks is far higher than that of a well cover, and the practicability is low; on the other hand, when meeting with heavy rain, the road ponding drainage is not smooth, and the pressure increase in the lower well can upwards push up the support well lid and carry out the pressure release, because the well lid is fixed completely by the tool to lock, leads to unable opening and sluices.
In addition, current apron is mostly monolithic structure, opens and need overturn whole well lid or remove away, and considers the load and require that the well lid generally adopts cast iron to pour and form, among its self weight, so comparatively hard when opening, especially when the condition in the observation well, also need open whole apron, comparatively takes time and takes a lot of work.
in view of the above problems, it is necessary to research and solve the problems that the cover plate is not fixed and is easily washed away by water or stolen, and the cover plate is completely fixed and cannot drain water, so that the well cover is supported, even a road is damaged, and the cover plate is inconvenient to open. The designer develops a novel anti-displacement safety inspection well cover through careful attack.
Disclosure of Invention
In order to solve the problems in the prior art, a novel anti-displacement safety inspection well cover is provided. The anti-theft anti-displacement manhole cover can prevent displacement and is convenient to open, and meanwhile, when rainstorm occurs, the manhole cover can be opened, the opening angle of the manhole cover is limited within 0-30 degrees, on one hand, excessive accumulated water in a sewer is quickly discharged to the road surface, the pressure of water flow in the sewer is reduced, the excessive pressure is prevented, and the manhole cover is supported; on the other hand, prevent that the too big incident that takes place of well lid opening angle.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the invention provides a novel anti-displacement safety inspection well cover, which comprises a ring seat and a cover plate arranged on the ring seat, wherein the cover plate comprises a first cover plate and a second cover plate hinged with the first cover plate, and the first cover plate is also hinged with the ring seat; the water discharging device is characterized in that at least one water discharging groove is formed in the second cover plate, a limiting rod sliding along the water discharging groove is arranged in the water discharging groove, a groove is formed in the inner wall of the ring seat, the other end of the limiting rod is clamped in the groove, the limiting rod is further connected with an executing mechanism enabling the limiting rod to slide, and the executing mechanism is arranged below the cover plate.
Preferably, the actuating mechanism is a spring, one end of the spring is fixedly connected to the limiting rod, and the other end of the spring is connected with the cover plate.
Preferably, the drainage grooves are symmetrically arranged.
Preferably, the actuator comprises:
The two ends of the double-rotation-direction screw rod are connected with screw rod nuts in a matched mode, and the screw rod nuts are fixedly connected to the limiting rods;
The driven bevel gear is fixedly sleeved on the lead screw; the driven bevel gear is also meshed with a driving bevel gear, and the driving bevel gear is connected with a rotating shaft which is rotatably connected on the cover plate; a hexagonal sleeve is connected above the rotating shaft.
Preferably, the second cover plate is provided with a through hole, and the hexagonal sleeve is arranged in the through hole.
Preferably, the cover plate is further provided with a step-shaped lifting slotted hole, a lifting handle is arranged in the lifting slotted hole, and the top end of the lifting handle is flush with the top end of the lifting slotted hole.
Compared with the prior art, the invention has the beneficial effects that:
1. According to the invention, the cover plate is integrally arranged into a split structure formed by combining the first cover plate and the second cover plate, the first cover plate is hinged with the ring seat, and the first cover plate is hinged with the second cover plate, so that the well cover can be prevented from being displaced or stolen on one hand, and on the other hand, when the well cover is opened, the size of the well cover can be determined according to the situation, the integral opening is not needed, and the time and labor are saved;
2. The limiting rod and the groove which can slide are arranged on the cover plate, when the pressure in the rainstorm inspection well is too large to support the well cover, the limiting rod can move upwards along with the well cover to rotate and is clamped at the upper wall of the groove to realize limiting, and when the well cover is opened, the opening angle of the well cover is limited within 0-30 degrees, so that excessive accumulated water in a sewer can be quickly discharged to the road surface, the pressure of water flow in the sewer is reduced, and safe pressure relief is realized, and on the other hand, safety accidents caused by the fact that the opening angle of the well cover is too large are prevented;
3. The actuating mechanism is arranged, so that the position relation between the limiting rod and the groove can be conveniently adjusted, and further, when the condition in the inspection well is overhauled or observed, the limiting rod can be conveniently moved to the position close to the center of the ring seat, the limiting rod is not clamped in the groove any more, and the well cover can be completely opened simply and easily.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a sectional view taken along a-a in fig. 1.
Fig. 3 is a schematic structural diagram of the second embodiment of the present invention.
Fig. 4 is a schematic view of the structure along B-B in fig. 3.
Fig. 5 is a schematic view of the structure along C-C in fig. 3.
FIG. 6 is an enlarged view of the structure of the carrying handle of FIG. 3.
FIG. 7 is a schematic diagram of a third structure according to an embodiment of the present invention.
Fig. 8 is a sectional view taken along the direction D-D in fig. 7 (with the ring holder removed).
Fig. 9 is an enlarged schematic view of the structure of the region E in fig. 8.
Fig. 10 is a schematic view of a hexagonal wrench.
FIG. 11 is a diagram illustrating a fourth structure according to an embodiment of the present invention.
Fig. 12 is a schematic view of the structure of fig. 11 taken along F-F (with the collar removed).
fig. 13 is a schematic structural diagram of a fifth embodiment of the present invention.
Fig. 14 is a sectional view taken along the direction K-K in fig. 13.
Fig. 15 is a structural view illustrating a maximum opening angle of the second cover in fig. 14.
fig. 16 is a schematic view showing a state in which the stopper rod of fig. 14 slides along the drain groove.
Fig. 17 is a schematic view showing a state where the second manhole cover is completely opened in the inspection state of fig. 14.
Description of reference numerals:
1 ring of base; 2 a first cover plate; 3 a second cover plate; 4, a pin shaft; 5, a drainage groove; 6, limiting rods; 7 placing the notch; 8, grooves; 9 connecting plates; 10 springs; 11, limiting a boss; 12 lifting the slotted hole; 13 lifting the handle; 131 a handle; 132 a pull rod; 133 supporting rods; 14 through holes; 15 hexagonal sleeves; 16 rotating shafts; 17 a bearing; 18 a support frame; 19 a drive bevel gear; 20 driven bevel gears; 21 a lead screw; 22 a lead screw nut; 23 double-rotation-direction lead screw; a 24-hexagon wrench; and (5) 25 risers.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
Example one
As shown in fig. 1 and fig. 2, the embodiment provides a novel anti-displacement safety inspection well cover, which includes a ring seat 1, a placing notch 7 is provided on the ring seat 1, a cover plate is placed in the placing notch 7, the cover plate is composed of two parts, namely a first cover plate 2 and a second cover plate 3, wherein the first cover plate 2 and the second cover plate 3 are directly hinged together through a hinge shaft, and the first cover plate 2 is further hinged with the ring seat 1 through a pin shaft 4. Therefore, the whole cover plate has a folding function, the size of the opened cover plate can be determined according to the condition in the well to be overhauled or observed, the whole cover plate does not need to be completely overturned or opened, only the second cover plate 3 needs to be overturned upwards when observation is needed, and the second cover plate 3 and the first cover plate 2 are opened when underground overhauling is needed, so that the foldable cover plate is flexible to use, time-saving and labor-saving and small in limitation; meanwhile, the cover plate can be effectively prevented from being displaced or stolen.
In addition, the second cover plate 3 is also provided with a water drainage groove 5, the water drainage groove 5 is transversely arranged, the water drainage groove 5 penetrates through the upper surface and the lower surface of the whole second cover plate 3, the water drainage groove 5 is of a step-shaped structure, and the water drainage groove 5 is connected with a limiting rod 6 in a sliding manner; the limiting rod 6 is integrally arranged in an L shape in the main view direction. The top of gag lever post 6 can be leveled mutually with the top of water drainage tank 5, improves planarization and aesthetic property.
Still seted up recess 8 on the 1 inner wall of circle seat, recess 8 sets up in the below of placing notch 7, recess 8 and place and form spacing boss 11 between the notch 7, and in the bottom of gag lever post 6 stretched into recess 8, when gag lever post 6 overturns, utilize spacing boss 11 to realize the restriction to 6 turned angle of gag lever post, and then with the opening angle restriction of well lid in alpha angle, alpha's the biggest value is 30.
In the normality, in order to guarantee that the bottom of gag lever post 6 stretches into recess 8 always, simultaneously, when overhauing, conveniently adjust the position of gag lever post, set up actuating mechanism on gag lever post 6, this actuating mechanism is spring 10, and spring 10's one end links to each other with gag lever post 6, and the other end is connected with connecting plate 9, and connecting plate 9 fixed connection is in 3 bottoms on the second apron.
Through setting up spring 10, utilize spring 10's spring action, can guarantee that gag lever post 6 is located the left end of water drainage tank 5 under the normality always, i.e. gag lever post 6's bottom stretches into in the recess 8 all the time, meet the torrential rain like this, when the too big top of inspection shaft internal pressure held in the palm the well lid, the well lid can upwards overturn, gag lever post 6 can shift up the upset along with the well lid, because spring 10's effect, gag lever post 6 can not break away from recess 8, move the in-process card at the top of recess 8 at last, realize spacingly, just so realized injecing the opening angle of whole apron, prevent that the opening angle is too big, the incident takes place, can make things convenient for the drainage pressure release simultaneously again, prevent that pressure is too big, the top.
When the cover plate needs to be opened during maintenance, the limiting rod 6 moves rightwards along the drainage groove 5, the spring 10 is compressed under pressure, the limiting rod 6 moves rightwards and is separated from the groove 8, the cover plate can be conveniently and completely opened at the moment, the angle limitation cannot be caused, the operation of observing the conditions in the well or performing maintenance in the well cannot be influenced, and the cover plate is simple, easy, safe and reliable.
The drainage channel 5 can play the drainage effect when the rainfall is less, provides the slidable platform for the gag lever post again when overhauing, kills two birds with one stone, occupation space not.
By the device, the problems that the cover plate is not fixed and is easily washed away by water or stolen, and the cover plate is completely fixed and can jack the well cover or even damage a road due to water drainage failure and is inconvenient to open are effectively solved.
Example two
As shown in fig. 3-6, the embodiment provides a novel anti-displacement safety inspection well cover, and other structures are the same as the embodiment, except that in this embodiment, two drainage grooves 5 transversely arranged are formed in the second cover plate 3 and symmetrically arranged, the two drainage grooves 5 are provided with limiting rods 6, the bottom of each limiting rod 6 is provided with a spring 10, and the springs 10 are connected to the connecting plate 9.
Set up two water drainage tank 5 and can improve drainage speed on the one hand, on the other hand sets up two gag lever post 6 and can provide stronger spacing ability, and is reliable and stable, prevents because of inspection shaft internal pressure is too big, and gag lever post 6 does not bear the pressure that upwards liftout held in the palm, improves safe handling nature.
In addition, in this embodiment, in order to facilitate opening of the second cover plate 3, a stepped lifting groove 12 is further provided on the second cover plate 3, a lifting handle 13 is provided in the lifting groove 12, the lifting handle 13 includes a handle 131, the handle 131 is provided in the lifting groove 12, a top end of the handle 131 is flush with a top end of the lifting groove 12 to ensure flatness, a pull rod 132 is provided below the handle 131, a support rod 133 is connected to a bottom of the pull rod 132, and a length of the support rod 133 is greater than a length of the lifting groove 12.
When using, hold handle 131 and upwards mention, bracing piece 133 plays support and limiting displacement, can be convenient pull up the apron, need not to prepare solitary instrument again, labour saving and time saving raises the efficiency.
the working principle of the device is the same as that of the first embodiment, and the description is omitted here.
EXAMPLE III
As shown in fig. 7-10, the embodiment provides a novel anti-displacement safety inspection well cover, and the other structures are the same as those of the first embodiment, except that in the first embodiment, the actuating mechanism connected to the limiting rod 6 is a lead screw 21, where the lead screw 21 is a single-direction lead screw, a lead screw nut 22 is cooperatively arranged on the lead screw 21, the lead screw nut 22 is fixedly connected to the limiting rod 6, the other end of the lead screw 21 is rotatably connected to a vertical plate 25, and the top end of the vertical plate 25 is fixedly connected to the bottom of the cover plate.
The screw 21 is fixedly connected with a driven bevel gear 20, a driving bevel gear 19 is meshed above the driven bevel gear 20, a rotating shaft 16 is connected above the driving bevel gear 19, a hexagonal sleeve 15 is connected above the rotating shaft 16, a through hole 14 is further formed in the second cover plate 3, and the hexagonal sleeve 15 is arranged inside the through hole 14.
The hexagonal wrench 24 is also arranged in the hexagonal socket 15, and the hexagonal wrench 24 can be inserted into the hexagonal socket 15 to drive the rotating shaft 16 to rotate.
the working principle is as follows: insert hexagonal sleeve 15 in through hexagonal spanner 24, it is rotatory to drive the pivot, and it is rotatory to drive bevel gear 19, and then drives driven bevel gear 20 rotatory, and lead screw 21 then rotates, and screw nut 22 removes along the lead screw, realizes that gag lever post 6 stretches into or stretches out in the recess 8. Other working processes are the same as those in the first embodiment, and are not described again.
example four
as shown in fig. 11-12, this embodiment provides a novel anti-displacement safety inspection well cover, and other structures are the same as the three phases of the embodiment, except that two drainage grooves 5 are provided in this embodiment, and further two limiting rods 6 are provided, and the two limiting rods 6 are both connected with lead screw nuts 22, and the two lead screw nuts 22 are both connected with the same double-rotation lead screw 23, and the double-rotation lead screw 23 has two sections of threads with different rotation directions. When the limiting rod is used, the double-screwing-direction lead screw 23 starts to rotate by rotating the hexagonal sleeve 15, and due to the fact that two different screwing directions exist, the two lead screw nuts 22 move towards the directions close to or far away from each other, and then the limiting rod 6 extends out of or into the groove 8. Other working processes are the same as the above embodiment, and are not described again.
EXAMPLE five
As shown in fig. 13-17, the embodiment provides a novel anti-displacement safety inspection well cover, and other mechanisms are the same as those of the embodiment, except that in the embodiment, the drainage channel 5 is vertically arranged, the groove 8 formed in the ring seat 1 is arc-shaped, and the arc radius of the groove 8 is greater than the radius of the rotation track of the limiting rod 6.
When using, spring 10's elasticity leans on 6 tops of gag lever post to keep away from the one end at the apron center at water drainage tank 5, when meetting the torrential rain top and holding in the palm the well lid, and second apron 3 is rotatory upwards, and it is rotatory to drive gag lever post 6, because spacing boss 11's effect, 6 cards of gag lever post are at recess 8 topmost, make maximum rotation angle be 30, so both can guarantee the drainage pressure release, can prevent again that the pedestrian from falling.
When underground or downhole maintenance needs to be observed, the limiting rod 6 is pushed to one end, close to the center of the cover plate, of the drainage groove 5, the spring 10 is compressed to give up a rotating space, and the limiting rod 6 can rotate out of the limiting boss 11, so that the cover plate is completely opened, and the device is simple and easy to operate and convenient to operate.
by way of example, it can be seen that:
According to the invention, the cover plate is integrally arranged into a split structure formed by combining the first cover plate and the second cover plate, the first cover plate is hinged with the ring seat, and the first cover plate is hinged with the second cover plate, so that the well cover can be prevented from being displaced or stolen on one hand, and on the other hand, when the well cover is opened, the size of the well cover can be determined according to the situation, the integral opening is not needed, and the time and labor are saved.
The sliding limiting rod and the groove are arranged on the cover plate, when the pressure in the rainstorm inspection well is too large to support the well cover, the limiting rod moves upwards along with the well cover and is clamped at the upper wall of the groove to realize limiting, and when the well cover is opened, the opening angle of the well cover is limited within 0-30 degrees, so that excessive accumulated water in a sewer can be quickly discharged to the road surface, the pressure of running water in the sewer is reduced, and safe pressure relief is realized, and on the other hand, safety accidents caused by the fact that the opening angle of the well cover is too large are prevented;
According to the invention, the actuating mechanism is arranged, so that the position relation between the limiting rod and the groove can be conveniently adjusted, and further, when the condition in the well is overhauled or observed, the limiting rod can be conveniently moved to the position close to the center of the ring seat, so that the limiting rod is not clamped in the groove any more, and the well cover can be completely opened, and the method is simple and feasible.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (6)
1. A novel anti-displacement safety inspection well cover comprises a ring seat and a cover plate arranged on the ring seat, and is characterized in that the cover plate comprises a first cover plate and a second cover plate hinged with the first cover plate, and the first cover plate is also hinged with the ring seat; the water discharging device is characterized in that at least one water discharging groove is formed in the second cover plate, a limiting rod sliding along the water discharging groove is arranged in the water discharging groove, a groove is formed in the inner wall of the ring seat, the other end of the limiting rod is clamped in the groove, the limiting rod is further connected with an executing mechanism enabling the limiting rod to slide, and the executing mechanism is arranged below the cover plate.
2. The novel anti-displacement safety inspection well cover as claimed in claim 1, wherein the actuator is a spring, one end of the spring is fixedly connected to the limiting rod, and the other end of the spring is connected to the cover plate.
3. the novel anti-displacement safety inspection well cover as claimed in claim 1, wherein the two drainage grooves are symmetrically arranged.
4. The novel anti-displacement safety inspection well cover according to claim 3, wherein the actuator comprises:
The two ends of the double-rotation-direction screw rod are connected with screw rod nuts in a matched mode, and the screw rod nuts are fixedly connected to the limiting rods;
The driven bevel gear is fixedly sleeved on the lead screw; the driven bevel gear is also meshed with a driving bevel gear, and the driving bevel gear is connected with a rotating shaft which is rotatably connected on the cover plate; a hexagonal sleeve is connected above the rotating shaft.
5. the novel anti-displacement safety inspection well cover according to claim 3, wherein the second cover plate is provided with a through hole, and the hexagonal sleeve is arranged in the through hole.
6. The novel anti-displacement safety inspection well cover as claimed in claim 1, wherein the cover plate is further provided with a stepped lifting groove hole, a lifting handle is arranged in the lifting groove hole, and the top end of the lifting handle is flush with the top end of the lifting groove hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910917568.2A CN110552418A (en) | 2019-09-26 | 2019-09-26 | novel anti-displacement safety inspection well cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910917568.2A CN110552418A (en) | 2019-09-26 | 2019-09-26 | novel anti-displacement safety inspection well cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110552418A true CN110552418A (en) | 2019-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910917568.2A Pending CN110552418A (en) | 2019-09-26 | 2019-09-26 | novel anti-displacement safety inspection well cover |
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| CN (1) | CN110552418A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111794066A (en) * | 2020-07-07 | 2020-10-20 | 中国建筑第八工程局有限公司 | Lifting hole plugging device for fabricated road and construction method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2753800Y (en) * | 2004-11-26 | 2006-01-25 | 仝紫诺 | Anti-theft inspection well cover |
| JP2008285834A (en) * | 2007-05-15 | 2008-11-27 | Emergency:Kk | Lid device of manhole |
| CN103306309A (en) * | 2013-07-02 | 2013-09-18 | 徐鸿祥 | Anti-theft safe water-draining inspection-well cover |
| CN208563392U (en) * | 2018-06-26 | 2019-03-01 | 潍坊团共尔机械有限公司 | A kind of split type inspection well cover easy to repair |
| CN210767158U (en) * | 2019-09-26 | 2020-06-16 | 山东省水利科学研究院 | Novel anti-displacement safety inspection well cover |
-
2019
- 2019-09-26 CN CN201910917568.2A patent/CN110552418A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2753800Y (en) * | 2004-11-26 | 2006-01-25 | 仝紫诺 | Anti-theft inspection well cover |
| JP2008285834A (en) * | 2007-05-15 | 2008-11-27 | Emergency:Kk | Lid device of manhole |
| CN103306309A (en) * | 2013-07-02 | 2013-09-18 | 徐鸿祥 | Anti-theft safe water-draining inspection-well cover |
| CN208563392U (en) * | 2018-06-26 | 2019-03-01 | 潍坊团共尔机械有限公司 | A kind of split type inspection well cover easy to repair |
| CN210767158U (en) * | 2019-09-26 | 2020-06-16 | 山东省水利科学研究院 | Novel anti-displacement safety inspection well cover |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111794066A (en) * | 2020-07-07 | 2020-10-20 | 中国建筑第八工程局有限公司 | Lifting hole plugging device for fabricated road and construction method thereof |
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